News archive

April 17, 2019

By systematically collecting samples from Switzerland’s rivers, “Progetto Fiumi” has documented more than forty species of fish. In addition, within the various species, the Eawag research group has found a rich diversity that had not been fully assessed before. The project thus provides a basis for the protection of this genetic and ecological diversity. Read more

April 2, 2019

Two studies by Eawag and the Ecotox Centre have once again shown that surface waters in agricultural catchment areas are heavily contaminated with plant protection products. Concentrations of individual substances persisting for several months pose a risk of chronic toxicity and, for extended periods, exceed the levels at which a risk of acute toxicity exists for aquatic plants and organisms. In most of the samples, 30 or more different active ingredients were detected. Studies of stream biodiversity and bioassays confirmed the threat posed by these mixtures of substances. Read more

March 4, 2019

A new study by an interdisciplinary team from Eawag has shown that substances from agriculture affect living organisms in rivers and streams to a greater extent than treated wastewater, which has less impact on the species composition of microorganisms.  Read more

February 28, 2019

Aquatic organisms are adapted to harsh conditions at high altitudes and are tolerant of a certain level of disturbances. However, according to a study conducted in the canton of Valais, frequent flushing of water intakes leads to a dramatic decline in populations of macroinvertebrates, such as insects or worms. Read more

February 26, 2019

When ecosystems tip abruptly out of balance, this can be catastrophic for humans and for biodiversity. Astonishingly little is known about the role of evolution in such processes. A research team including Eawag scientists has now published approaches to investigating such complex questions in the journal “Nature Ecology & Evolution”. Read more

February 20, 2019

As of this week, “LéXPLORE”, a 100 metre research platform, is afloat on Lake Geneva. On board are countless radiosondes and sensors which should enable researchers at Eawag, EPFL and the Universities of Lausanne and Geneva to gain a better understanding of the ecological processes at work in Lake Geneva as well as the interactions between the water and the atmosphere. Read more

February 8, 2019

In the coming decades, many rivers in Switzerland are to be restored to a natural state. To identify those river reaches where restoration would be ecologically most valuable, Eawag scientists have developed a new assessment procedure. Read more

January 24, 2019

“Innovation from Switzerland, for Switzerland” is the theme of a special feature at this year’s World Economic Forum, where Eawag, as part of the ETH Domain will have the opportunity to discuss and share ideas with guests from the Swiss political arena as well as from the public and private sectors. Read more

January 15, 2019

Climate factors determine the carbon cycles of river ecosystems. These factors are increasingly influenced by humans. A large-scale study is now for the first time showing globally comparable patterns and thus providing a basis for future assessment of the consequences of climate change.  Read more

December 3, 2018

Amphipods in Swiss waters are exposed to insecticides, pharmaceutical residues and other trace substances, and accumulate these in their bodies. However, when water-treatment plants are upgraded, practically no trace substances are found in these organisms according to a new study carried out by Eawag researchers. Read more